Battery charger



FIG. 1 is a front top right side perspective view of a battery charger showing our new design.

FIG. 2 is a top, front, left side perspective view thereof.

FIG. 3 is a front side elevational view thereof.

FIG. 4 is a back side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a left side elevational view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings are for the purpose of illustrating unclaimed portions of the battery charger and form no part of the claimed design. 

CLAIM We claim the ornamental design for a battery charger, as shown and described. 